MM 40/40 6/15 Block, 1.5"x1.5"x1.5", 15 per strip, 3 strips per packGrodan Block 1.5x1.5x1.5 (RWMM4040)Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant ... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.

AO 25/40 10/10 Cubes, 1x1", 30 sheets of 200Grodan Cube 1X1X1.5 no shrink film (RWAO2540)The renewed plugs result in a maximum number of useable and homogeneous seedlings. Both form and strength have been greatly improved for good machine and manual processing. Whether sowing or transplanting, the new plug is the solution to achieving a homogeneous sowing result.
Improved homogeneity
Optimum robustness and flexibility ... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.

AO 36/40 6/15 Cubes, 1.5x1.5", 30 sheets of 98Grodan Cube 1.5x1.5x1.5 (RWAO3640)Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant s... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.

Grodan Mini Cubes, 2 cubic feet bag, case of 3Grodan Grow Cubes Big 2 cu ft (RW91003)Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different pl... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.

Delta 4 Block, 3"x3"x2.5" with hole, case of 384Grodan Block 3x3x2.5 42/40 (RWDM4G)Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant ... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.

Grodan Macro Plug Round w/ Slit Bulk (case of 2000)Macroplugs™ are 1.5 in round with a slit that allows easy insertion of a cutting. These loose round plugs fit perfectly into the Gro-Block™ hole. For best results with these Macroplugs always insert them in a tray with individual cells. The individual cell will make sure the plug stays closed around the stem of your cutting.... — Ships separately from SS: WA, CA, CO, MI, TN, PA, FL USA....more info.

Rockwool Grow Cubes. Medium BagRockwool Grow Cubes by Grodan. Medium Bag.Small air pockets form spaces for roots to take in oxygen but still be moist. Good stuff.Cubes are approximately 3/8" by 3/8" square.... — Ships from Portland, Oregon USA....more info.

Delta 5.6 Block, 3"x3"x4", case of 256Grodan Block 3x3x4 42/40 (RWDM5.6)Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant s... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.

Expert 15/100 Slab, 6"x4", case of 12Grodan Expert Slab 36x6x4 (RW15100)PLEASE NOTE: THIS ITEM IS NOW 12 PER CASE.
Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requ... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.

Big Mama 8x8x8, case of 18Grodan Big Mama 8x8x8 (RW108001)BIG MAMA is the largest block ever produced by Grodan. It is 8" square and contains over twice the amount of wool as the popular Hugo block. This block is big enough to grow a large plant for its entire life! When your plant outgrows its current block, just place it on top of Big Mama. BIG MAMA is solid wool and does not have a precut hole thus maki... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.

Classic 30/75 Slab (wet), 12" x 3", case of 8Grodan Classic Slab 36x12x3 (RW3075)Grodan Stonewool (rockwool) is made from molten rock spun into cotton candy-like fibers and then compressed into cubes, blocks, or slabs. Where other rockwool brand manufacturers cut all sizes from one batch of wool, Grodan is unique by making different types of fibers. The purpose is to support the requirement of the plant in the different plant... — Ships separately from HF: OR, CA, CO, PA, TX, FL USA....more info.